Sound Driver I m format my compaq f733au laptop and i dont have a sound driver for my notebook pc

If you are reinstalling Vista it can be found here - http://h10025.www1.hp.com/ewfrf/wc/softwareList?os=2093&lc=en&cc=us&lang=en&dlc=en&product=3645611

If XP then download and then install these three in order.
ftp://ftp.hp.com/pub/softpaq/sp33501-34000/sp33566.exe
ftp://ftp.hp.com/pub/softpaq/sp34001-34500/sp34200.exe
ftp://ftp.hp.com/pub/softpaq/sp33501-34000/sp33742.exe